EP2858907A1 - Système de déballage de cartons - Google Patents

Système de déballage de cartons

Info

Publication number
EP2858907A1
EP2858907A1 EP13800346.2A EP13800346A EP2858907A1 EP 2858907 A1 EP2858907 A1 EP 2858907A1 EP 13800346 A EP13800346 A EP 13800346A EP 2858907 A1 EP2858907 A1 EP 2858907A1
Authority
EP
European Patent Office
Prior art keywords
cartons
stack
case
assembly
cases
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP13800346.2A
Other languages
German (de)
English (en)
Other versions
EP2858907A4 (fr
EP2858907B1 (fr
Inventor
Colin Ford
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Graphic Packaging International LLC
Original Assignee
Graphic Packaging International LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Graphic Packaging International LLC filed Critical Graphic Packaging International LLC
Publication of EP2858907A1 publication Critical patent/EP2858907A1/fr
Publication of EP2858907A4 publication Critical patent/EP2858907A4/fr
Application granted granted Critical
Publication of EP2858907B1 publication Critical patent/EP2858907B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/12—Feeding flexible bags or carton blanks in flat or collapsed state; Feeding flat bags connected to form a series or chain
    • B65B43/126—Feeding carton blanks in flat or collapsed state
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/12—Feeding flexible bags or carton blanks in flat or collapsed state; Feeding flat bags connected to form a series or chain
    • B65B43/14—Feeding individual bags or carton blanks from piles or magazines
    • B65B43/145—Feeding carton blanks from piles or magazines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/12—Feeding flexible bags or carton blanks in flat or collapsed state; Feeding flat bags connected to form a series or chain
    • B65B43/14—Feeding individual bags or carton blanks from piles or magazines
    • B65B43/20—Feeding individual bags or carton blanks from piles or magazines by reciprocating or oscillating pushers
    • B65B43/205—Feeding individual bags or carton blanks from piles or magazines by reciprocating or oscillating pushers specially adapted for carton blanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/26—Opening or distending bags; Opening, erecting, or setting-up boxes, cartons, or carton blanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B69/00—Unpacking of articles or materials, not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H1/00—Supports or magazines for piles from which articles are to be separated
    • B65H1/02—Supports or magazines for piles from which articles are to be separated adapted to support articles on edge
    • B65H1/025—Supports or magazines for piles from which articles are to be separated adapted to support articles on edge with controlled positively-acting mechanical devices for advancing the pile to present the articles to the separating device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H1/00—Supports or magazines for piles from which articles are to be separated
    • B65H1/30—Supports or magazines for piles from which articles are to be separated with means for replenishing the pile during continuous separation of articles therefrom
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/42—Piling, depiling, handling piles
    • B65H2301/422—Handling piles, sets or stacks of articles
    • B65H2301/4225—Handling piles, sets or stacks of articles in or on special supports
    • B65H2301/42254—Boxes; Cassettes; Containers
    • B65H2301/422542—Boxes; Cassettes; Containers emptying or unloading processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/176—Cardboard

Definitions

  • the present invention generally relates to article packaging and handling systems, and in particular to a system for removing cartons and/or carton blanks from cases or other packaging for the cartons or carton blanks and transporting the removed cartons or carton blanks in stacks to a carton magazine for a packaging machine.
  • articles such as cans, bottles, individually wrapped food-stuffs, etc.
  • a product cartoning material such as a paperboard, cardboard or other, similar material.
  • product cartons can be provided as a series of folded and glued carton sleeves that are open at their ends for insertion of the products therein, or can include substantially flat carton blanks that will be folded by the product packaging machine and wrapped about a group of articles or products placed thereon.
  • the carton sleeves or carton blanks will be loaded into a carton magazine for the product packaging machine in stacks, which carton magazine then will feed individual carton sleeves or carton blanks into the packaging machine for loading with products or for wrapping about a series of product groups.
  • the cartons whether formed as carton sleeves or carton blanks, themselves typically are formed by outside vendors who ship the cartons in sleeve or blank form stacked in boxes or cases. Accordingly, before the cartons can be loaded into a carton magazine of a packaging machine, the cartons themselves first must be removed from their cases and thereafter stacked or loaded into the carton magazine. Even though automated carton stacking and loading systems have been developed for automatically loading stacks of cartons within the carton magazines of packaging machine or similar automated packaging equipment, it is still necessary to first remove the stacks of cartons from their containers or cases and thereafter load the stacks of cartons on the magazines or on automatic magazine loaders for feeding to the magazine for a packaging machine.
  • the present invention generally relates to a system and method for automatically removing cartons or carton blanks from cases or other, similar containers in a stacked configuration such as for feeding into a magazine of a downstream product packaging machine.
  • cases containing stacks of cartons such as, for example carton blanks or sleeves for packaging bottles, cans or other products in 2x6, 2x8, 2x12, 4x6 or other varying product configurations, will be loaded onto a carton infeed.
  • the cases can be queued up along the carton infeed for presentation to an inverting assembly at the downstream end of the case infeed, and typically, will be loaded with the upper ends of the cases being open, and with notches or recesses also generally being formed in the upstream and downstream side walls of the cases.
  • the cases initially are fed into the inverting assembly which includes an inverter head that is pivotally mounted on a support frame.
  • the inverter head further generally includes a pair of adjustable side guides and a pair of top and bottom support guides that are vertically adjustable with respect to one another so as to define a receiving area therebetween for receiving a case of a predetermined or preselected size therein.
  • the cases with the cartons stacked therein are correspondingly reoriented and are deposited on a downstream magazine or stacking conveyor, with the closed bottom end of each case generally being realigned in upwardly facing attitude or direction.
  • the inverter head and magazine conveyor further are adjustable vertically to enable adjustment of the position of the cases with respect to an overhead case lifting mechanism, so as to accommodate different height or size cases as needed.
  • the cases are initially deposited on a carton decasing assembly for removal of the case from the stack of cartons contained therein.
  • the carton decasing assembly generally includes an adjustable framework having laterally adjustable side guide rails on which the cases are received and initially supported, and a series of containment rod mechanisms mounted on supports or holders that are moveable longitudinally with respect to the side guide rails so as to enable adjustment of the longitudinal position of the containment rod mechanisms.
  • the adjustment of the side guide rails laterally, together with the longitudinal adjustment of the locations of the containment rod mechanisms enables the carton decasing assembly to be adjusted to accommodate varying length/depth and width cases.
  • a series of gripping lugs which are also mounted on the longitudinally sliding supports or holders that carry the containment rod mechanisms, are pivoted into engagement with the cartons, typically moving or passing through the recesses or gaps formed in the cases so as to engage and compress the stack of cartons inwardly.
  • the compression of the stack of cartons within the cases by the gripping lugs creates spacings/openings between the cartons and case walls in which the extensible containment rods can be received.
  • the containment rods are inserted into and pass between the foremost and rearmost cartons of the stack of cartons and the front and rear side walls of their case so as to hold the cartons in a stacked configuration as the case is removed therefrom and prevent the walls of the case from frictionally engaging or otherwise dislodging cartons from the stack.
  • each case is removed from its stack of cartons with the cartons being maintained in a stacked, substantially aligned configuration. Thereafter, the cartons are conveyed further along the magazine conveyor as the emptied cases are removed for disposal.
  • a stack pusher assembly will correspondingly engage the stack of cartons for urging the stack of cartons forwardly with the continued forward motion of the magazine conveyor. Thereafter, at about the same time, the containment rods can be disengaged from the stack of cartons and the carton decasing assembly retracted back to its initial, loading or case receiving position adjacent the inverting assembly.
  • the stack pusher assembly generally will include at least one stack pusher that, in one embodiment, can comprise a pair of extensible pusher rods each moved between extended and retracted positions by an actuator, such as a pneumatic or hydraulic cylinder, or other similar actuator.
  • the pusher rods further can be carried by an overhead support linked to a drive system connected to the drive mechanism for the magazine conveyor so as to move with the forward movement of the magazine conveyor.
  • the drive system of the stack pusher assembly also can be disconnected from the magazine conveyor so as to be independently driven for moving the stack pusher assembly to a retracted position as needed for engaging a next stack of cartons loaded on the magazine conveyor.
  • the pusher rods will be retracted as the decasing assembly conveys the next stack of cartons into a combined, stacked arrangement against the prior loaded stack of cartons.
  • the drive mechanism for the stack pusher assembly also can be disengaged from the magazine conveyor, and operated to retract the stack pusher assembly to a position behind the rearmost carton of the next stack of cartons being loaded, after which the pusher rods can be extended into an engaging position against the combined stack of cartons as the containment rods of the carton decasing assembly are retracted and the carton decasing assembly is moved back to its initial, loading position.
  • the drive mechanism of the stack pusher assembly further can be reengaged with the magazine conveyor to continue its forward motion with its pusher rods engaging and supporting the combined stack of cartons as the cartons are fed to the discharge point of the magazine conveyor.
  • FIG. 1 is a perspective illustration of the automatic carton decasing system according to the principles of the present invention.
  • FIG. 2 is a perspective view of the inverting assembly and stacking conveyor for receiving and inverting the packaged cartons for removal of the case therefrom.
  • FIG. 3A is a perspective view of the inverting assembly with a case of stacked cartons received therein.
  • FIGs. 3B and 3C are side elevational views illustrating the inverting of the carton cases at different heights for different size or geometry cartons.
  • FIGs. 4A and 4B are perspective illustrations of the carton decasing assembly with the containment rods thereof shown in retracted and raised positions.
  • Fig. 4C is an end view of the extensive containment rods of the carton decasing assembly.
  • Fig. 4D is a perspective view of the fore or proximal end of the stacking conveyor and the carton decasing assembly.
  • FIGs. 5A-5C are perspective illustrations showing the engagement of the grippers and containment rods of the carton decasing assembly for engagement and holding of a stack of cartons as the case is removed therefrom.
  • Fig. 6 is a perspective view of the stacking conveyor, illustrating the stack pusher assembly and carton decasing assembly according to the principles of the present invention.
  • Figs. 7A-7D are schematic illustrations of the operation of the stack pusher assembly for moving the stacks of cartons to a discharge point after removal of the cases therefrom.
  • FIG. 8 is a perspective illustration of an alternative embodiment of the carton decasing system according to the principles of the present invention.
  • Figs. 9A-9C are side elevational views schematically illustrating the extended orbital movement of the inverter head of the decasing system of Fig. 8.
  • Fig. 10 is a plan view of the decasing system of Fig. 8.
  • Figs. 1 -7D illustrate the automatic carton decasing system 10 and the operative assemblies thereof for removal of stacks of cartons 1 1 from cases or other containers 12 and for automatically loading such decased or removed carton stacks into a carton magazine 13 for feeding into a feeder assembly of a downstream packaging machine, as indicated in Fig. 1.
  • the cartons 12 can be received as stacks of flat carton blanks or as preformed carton sleeves, or in other configurations as needed or desired, and as will be understood by those skilled in the art, and will be oriented and removed from their cases in a stacked, substantially aligned configuration.
  • the automatic carton decasing system further is designed to fit with and/or be operable with a variety of different type or size packaging machines, for example for use with a Quikflex 600, Quikflex 2100, and/or G3 packaging machines such as manufactured by Graphic Packaging International.
  • the automatic carton decasing system further can be designed for retrofitting to existing packaging machines in the field, and further is adapted to unload/remove and load a full range of carton sizes and/or configurations as well as different case proportions and materials.
  • the automatic carton decasing system of the present invention can be utilized with 2 x 2, 3 x 4, 4 x 6 or other carton sizes and can handle cartons of a variety of sizes and shapes, including long, short cases, substantially square cases and tall and wide cases, such as illustrated at 12A and 12B, respectively, in Figs. 3B-3C and 5A 5C.
  • Fig. 1 generally illustrates one example embodiment of the automatic carton decasing system 10 according to the principles of the present invention, which generally includes an elongated frame 21 , which frame generally can be adapted to match its parent packaging machine.
  • a case infeed 23 At an upstream end or section 22 of the frame 21 comprises a case infeed 23.
  • the case infeed 23 generally will comprise a conventional conveying system 24 such as a chain conveyor, belt conveyor or other known type of conveying mechanism including belts, slats, chains or other conveying elements 26 that are driven about a substantially continuous path in the direction of arrow 27 by a motor or similar drive mechanism (not shown).
  • An operator can load the cases with cartons stacked therein on the upstream or first end of the case infeed conveyor 24, with the cases being queued in a line or supply arrangement.
  • the cases 12 will be oriented on the case infeed conveyor 24 in an upstanding attitude and with a top or upper end 16 of the cases 12 being open and a series of recesses, cut-outs, gaps or similar features 17 formed in the leading and trailing side walls 18A/18B of the cases.
  • the case infeed conveyor 24 will convey the cases in series to an inverting assembly 30, which inverts or otherwise reorients the cases so that the cases can be quickly and easily removed from the cartons while the cartons are maintained in a stacked configuration as illustrated in Figs. 2-3B.
  • the cases can be conveyed or transported to the inverting assembly from a remote location or an automatic depalletizer.
  • the case infeed conveyor further can be designed with respect to the inverting assembly 30 so that different length case infeed conveyors and/or extensions of the case infeed conveyor can be provided in either in-line or perpendicular arrangements to suit available space in a desired or required line layout.
  • the cases 12 can be loaded onto a first, upstream section 28A of the case infeed conveyor, and can then be transferred to and/or reoriented on a second, downstream section 28B, which conveys the cases to the inverting assembly 30 at the downstream end thereof.
  • the cases 12 with the cartons 11 stacked therein are conveyed to the downstream end of the case infeed conveyor and are brought into engagement/registration with the inverting assembly 30 positioned at the downstream end of the case infeed conveyor.
  • the inverting assembly inverts or reorients the cases with the cartons contained therein and places them on a stacking or magazine conveyor 31 having a carton decasing assembly 32 initially located in a first or case receiving position adjacent an upstream end of the magazine conveyor, as indicated in Figs. 1 and 5A-5C.
  • the inverting assembly thereafter will release each case, which will be moved with the decasing assembly along the magazine conveyor away from the inverting assembly and to a second or intermediate position for removal of the case as indicated in Fig. 1.
  • the inverting assembly 30 generally includes an inverter head 30A pivotally mounted on a pair of upstanding frame members or supports 33, and includes a pair of side guides or clamps 34 that are adjustable laterally so as to be repositionable as needed to engage different size cases.
  • Each of the side guides 34 generally will include a rearwardly projecting plate or arm 36 typically having an outwardly flared first or guide portion 36A and a substantially flat body or second portion 36B mounted to an adjustable slide support 37.
  • the slide supports 37 are movably mounted on a support rail 38 that extends laterally between a pair of vertical slides or supports 39, that further are mounted to a carrier or base frame member 41 , which pivotally attaches and supports the inverter head 30A on frame members 33.
  • the slide supports 37 can be moved laterally toward and away from each other, and can be fixed in place such as by set screws 42, or other, similar fasteners, to define a width for a receiving area 40 of the inverter head 30A in which the cases 12 are received, with the outwardly flared guide portions 36A of the side guides 34 helping to center and guide the cases into the receiving area.
  • the side guides can be adjusted inwardly to accommodate the reduced width or thinner configuration of the cases.
  • the inverter head 3 OA further includes top and bottom case support guides 44 and 46 that engage the top and bottom ends of the cases, for positively gripping and holding the cases during inversion or reorientation thereof to prevent the cartons from becoming dislodged or otherwise inadvertently released from the cases during inversion or reorientation thereof by the inverting assembly.
  • the case support guides 44 and 46 generally are mounted to vertical slides or supports 39, with the positions of the case support guides being adjustable therealong, such as by cranks or handwheels 47 to define a height for the receiving area 40 of the inverter head.
  • cranks or handwheels 47 As generally indicated in Fig.
  • the case supports further can include spaced forks, tines or plates 44A/46A, or can include other types of supports.
  • the inverter head further can be connected to or engaged by a drive belt 48 or similar conveying mechanism driven by a motor such as indicated at 49 in Fig. 3A for controlling the rotary motion of the inverter head for lifting, inverting and depositing the cases onto the magazine conveyor 31 (Fig. 2).
  • case support guides 44 and 46 engage and lift and pivot the cases with the cartons stacked therein, as indicated by arrows 51 in Figs. 3B and 3C, so as to reorient the cases in an inverted or upside down configuration, with the open top portions 16 of the cases being placed in a substantially downwardly facing alignment on the magazine conveyor 31 .
  • the case support guides 44, 46 In their initial stack receiving position, the case support guides 44, 46 generally are separated by a gap that is greater than the case height.
  • the lower case support guide 46 can move toward the upper case support guide 44, which closes this gap and thus conforms the case support guides to the case height.
  • the magazine conveyor 31 can be set at varying heights as needed depending upon the type of parent packaging machine and/or the type/configuration of cartons and cases being fed for decasing without affecting the operation of the inverting assembly 30.
  • the geometry of the inverting assembly, and the adjustability and/or closing engagement of its side guides and case support guides with a case 12 during inversion and placement of the case on the magazine conveyor allows a fixed height case infeed conveyor 24 to be utilized with variable height magazine conveyors, with the case inverting assembly automatically adjusting for case size and placing the case on the correct magazine height for the packaging machine. For example, as shown in Fig.
  • a tall case can be inverted and placed on the magazine conveyor, with the magazine conveyor adjusted and set at a lowered height, while for shorter or reduced height cases, as shown in Fig. 3C, the magazine conveyor 31 can be set at a higher level as needed for feeding the cartons into the magazine, without requiring reconfiguration or change-out of the inverting assembly 30.
  • a simple adjustment of the positions of the side guides and case support guides so as to readjust the receiving area in which the cases are received and engaged can be made to ensure a secure lifting and reorientation of the cases.
  • the carton decasing assembly 32 generally is initially located at the upstream or first end of the magazine conveyor 31 in a first, case receiving or loading position, indicated at 55, for receiving and engaging the cases after they are inverted by the inverting assembly.
  • Figs. 4A-5C generally illustrate the carton decasing assembly 32, which is movable along the magazine conveyor 31 between its first loading position, a second, intermediate or case removal position, indicated at 56 in Fig. 7A, and a third, downstream or disengaging position indicated at 57 in Fig. 6.
  • the movement of the decasing assembly 32 is controlled by a drive mechanism 58 (Fig. 4D) that is independently operable from the magazine conveyor.
  • the carton decasing assembly 32 (Figs. 4A-4B) generally includes an adjustable framework or sled 61 including laterally adjustable side guide rails 62 and 63 on which the cases are initially received, and a series of containment rod mechanisms 64.
  • Each containment rod mechanism includes a vertically extensible case containment rod 60, which is extensible between a lowered, resting or non-engaging position (Fig. 4A) and a raised, engaging position (Fig. 4B) by operation of an actuator 66, such as a pneumatic or hydraulic cylinder or other, similar actuator.
  • Each of the containment rod mechanisms further is carried on adjustable supports or holders 67 to enable variation of the longitudinal positions of the containment rod mechanisms as needed to accommodate varying depth or length cases.
  • a series of gripping lugs 68 also are pivotally mounted to the supports 66 for the containment rod mechanisms, and are extensible/pivotable by actuators, as indicated at 69, so as to move through the recesses or gaps 17 (Figs. 5A-5C) formed in the leading and trailing side walls of the cases 12 and into engagement with the cartons within the cases for gripping and applying pressure to the stacked cartons, as illustrated in Figs. 5A 5C.
  • each of the adjustable guide rails 62/63 is adjustable laterally along rails 71 to accommodate different size or configuration of cases, and the positions of the containment rods 60 further are adjustable longitudinally, such as by sliding movement of their supports 66 along guide rails 72 to further enable adjustment of the framework 61 of the carton decasing assembly to accommodate different size and/or configuration cases 12, as illustrated in Figs. 5A-5C. As indicated in Fig.
  • an adjustment mechanism 73 here shown as a hand-wheel or crank, although it will be understood that other manual and automatic adjustment mechanisms also can be used, will be provided along the magazine conveyor 31 for adjustment of the width of the magazine conveyor, and with it the width of the carton decasing assembly, to accommodate different width/size cartons.
  • a first side 74A of the magazine conveyor and the side guide rail (i.e., 63) associated therewith can remain fixed or stationary, with the opposite or second side 74B of the magazine conveyor being movable along laterally extending guide rails, such as shown at 75 in Fig. 4D, to adjust its position with respect to the first side 74A of the magazine conveyor, and with it, the position of side guide rail 62 with respect to side guide rail 63 of the carton decasing assembly.
  • the adjustments of the magazine conveyor, and with it, the carton decasing system, to accommodate varying size and/or configuration cartons and their cases generally will be made with respect to the parent packaging machine into which the cartons are to be fed.
  • the parent machine generally will act on a fixed score line date based on a crease or fold line about which the cartons are folded to provide a reference axis or line (indicated at phantom line 76 in Fig. 1) for the X-Y-Z adjustments of the magazine conveyor and carton decasing assembly.
  • the adjustments of the side frame assemblies of the carton decasing assembly both laterally and longitudinally accordingly are part of the size change procedure for the automatic carton decasing system, with such longitudinal and lateral adjustments generally being controlled via manual drive mechanisms and sensors so as to match the spacing of the containment rods and gripper lugs to the particular size and/or configuration of the cases and accordingly the stacks of cartons contained therein.
  • the positions of the containment rods will be adjusted to match the longitudinal size or thickness of the stacks of cartons, and to locate the containment rods approximately adjacent the fold or crease lines of the cartons to ensure stable and even engagement therewith as the cartons are conveyed along the magazine conveyor with the containment rods.
  • Figs. 5A-5C generally illustrate the operation of the decasing assembly 32.
  • the gripper lugs 68 and containment rods 60 are generally in their retracted, non-engaging positions.
  • the cases will have been formed with cutouts 17 (Fig. 2) that enable access therethrough by the gripper lugs 68 for engaging and holding the cartons (Figs. 5A-5C).
  • the gripper lugs will be engaged to first centralize the carton load and at least partially compress the stacks of cartons inwardly.
  • This engagement/compression of the stacks of cartons further will create spaced gaps or openings along the sides of the cartons to facilitate and/or enable entry of the containment rods 60, between the cartons and the leading and trailing side walls of the cases, as indicated in Fig. 5B. Additionally, as the cartons and cases are moved along the magazine conveyor, they will engage and ride along a sloped center guide 77 that assists in supporting the cartons and cases and in keeping them in a substantially square attitude or alignment as the containment rods are inserted.
  • a lifting mechanism 80 (Fig. 1 ) as the rods remain in a raised, engaging position for holding the stacks of cartons in place and as the case is removed therefrom.
  • the containment rods will remain up for decasing and subsequent transfer of the carton load to the back of a carton magazine such as being combined with a prior loaded stack thereon, thus supporting the carton load until a stack pusher assembly 90 engages the stack of cartons and locates the stack of cartons against the back of previously loaded supply or stack of cartons within the magazine, as indicated in Figs. 7A-7C.
  • a sensor 78 (Fig. 1 )
  • the gripper lugs generally will release the cartons from engagement as the case is lifted off of the stack of cartons as shown by Fig. 5C, which gripper lugs will further be retracted below the cartons as indicated in Fig. 5A.
  • the stack pusher assembly 90 generally is located along the magazine conveyor 31, downstream from the carton decasing assembly 32.
  • the stack pusher assembly 90 can include one or more stack pushers 91 movable along the length of the magazine conveyor, which stack pushers will engage the stacks of cartons after they are removed from their cases and will hold a final or rearmost carton at the back of a stack of cartons being fed into the discharge point 92 of the magazine conveyor.
  • the at least one stack pusher 91 can comprise a pivoting arm, indicated at phantom lines 94 in Fig. 2, having a pusher plate 96, and which is adapted to be pivotable into and out of the path of travel of the stacks of cartons, which is movable with the operation of the magazine conveyor to maintain the stacks of cartons at an upright, stacked attitude.
  • these stack pushers can include a pair of extensible pusher rod assemblies 100/101 mounted above the magazine conveyor and movable along a parallel path of travel therewith.
  • the pusher rod assemblies 100/101 generally will be spaced apart along a laterally extending support rail, with the lateral position or location of the pusher rod assemblies along the support rail 102 being adjustable with respect to one another to accommodate different size cartons.
  • the lateral positions of the pusher rod assemblies can be adjusted with respect to a centerline of the parent packaging machine to align their pusher rods 106 with creases or fold lines of the cartons.
  • the pusher rod assemblies each will include an actuator 104, such as a hydraulic or pneumatic cylinder, and a pusher rod 106 which is extensible to a lowered, engaging position and can be retracted upwardly to a non-engaging or retracted position out of engagement with the cartons.
  • an actuator 104 such as a hydraulic or pneumatic cylinder
  • a pusher rod 106 which is extensible to a lowered, engaging position and can be retracted upwardly to a non-engaging or retracted position out of engagement with the cartons.
  • the pusher rods 106 can be provided with a length sufficient to engage a variety of different height cartons, or alternatively, the position of the support rail 102 can be adjusted vertically along guide arm 107 to further adjust the vertical position of the pusher assemblies 100/101. Thus, the height of the pusher assemblies can be further adjusted as needed to accommodate variations in size of the cases.
  • the support rail 102 is slidable along an upper guide rail 108, which helps control and maintain consistent movement of the pusher assemblies in a substantially parallel path of travel to the path of travel P of the cartons along the magazine conveyor.
  • the vertical support 107 also connects the support rail 102 and thus the pusher assemblies 100/101 mounted therealong to an independent drive system 110.
  • the independent drive system 1 10 of the stack pusher assembly is disengagably connected to the magazine conveyor drive mechanism or system 1 11 so as to generally be moved therewith as the cartons are fed along the magazine conveyor with the pusher rods of the stack pushers in engagement therewith.
  • the drive system 110 for the stack pusher assembly further is separably operable as needed to permit the stack pusher assembly to be moved longitudinally, upstream and downstream, independently of the movement of the magazine conveyor as needed to retract and/or reposition the stack pusher assembly as indicated in Figs. 7A-7D.
  • the stack pusher assembly can be re-synced with the movement of the magazine conveyor to maintain the stack pusher assembly in engagement with the stacks of cartons being fed along the magazine conveyor into the downstream magazine 13.
  • the stack pusher when the stack pusher is operated with the magazine conveyor, its motor is at rest and the stack pusher sprocket is engaged with the chain with the stack pusher(s) engaging the carton stack as the whole assembly moves in concert.
  • the stack pushers need to move upstream to go behind a new stack of cartons, its stack pusher motor drives the stack pusher assembly upstream, along its chain and along the magazine conveyor, whether the magazine is stationary or indexing to feed a next carton.
  • FIGs. 7A-7D The operation of the stack pusher assembly is generally illustrated in Figs. 7A-7D.
  • the cartons are conveyed in a stacked configuration by the carton decasing assembly 32 along their path of travel P along the magazine conveyor 31 toward the discharge end or point of the magazine conveyor.
  • the carton decasing assembly As indicated in Fig. 7A, after the initial startup and loading of a first stack of cartons on the magazine conveyor, the next stack of cartons being conveyed or moved along the magazine conveyor by the carton decasing assembly will approach a previously loaded stack of cartons 1 1 , which stack of cartons is maintained in a substantially upright, or slightly forward leaning attitude by the engagement of the stack pusher assembly therewith.
  • the sensor 78 (Fig. 4D) at the upstream end of the sled 61 of the carton decasing assembly 32 will be engaged, such as by contacting a rearmost carton (Fig. 7B) of the previously loaded stack of cartons.
  • the sensor 78 (Fig. 4D)
  • the activation of the sensor by the approach of the next stack of cartons being carried by the carton decasing assembly towards the rearmost carton of the preceding loaded stack of cartons will cause the disengagement of the stack pusher assembly.
  • the pusher rods 106 Upon a disengagement signal being sent to the stack pusher assembly, the pusher rods 106 will be retracted, as indicated in Fig. 7B, and the drive system 1 10 for the stack pusher assembly will be disengaged from the magazine conveyor. Thereafter, as indicated in Fig. 7C, the stack pusher assembly drive mechanism will be independently operated so as to move the stack pushers rearwardly, in the direction of arrow 1 15, to a retracted position behind the rearmost carton of the stack of cartons on the carton decasing assembly.
  • the pusher rods will be extended into engagement with the rearmost carton of the combined stack of cartons and the drive system for the stack pusher assembly will be reengaged with the drive system or drive mechanism of the magazine conveyor.
  • a pair of shoes 1 16 can engage and pass over the top edges of the cartons to ensure that the cartons will not be caught or otherwise engaged by the pusher rods.
  • These shoes also can be linked to a sensor to signal a fault condition if movement of the shoes along the cartons is disrupted or interfered with during retraction of the stack pushers.
  • the containment rods of the carton decasing assembly can be retracted, releasing the cartons from engagement therewith, after which the carton decasing assembly can be moved back to its initial, loading or carton receiving position adjacent the upstream end of the magazine conveyor and the inverting assembly. Thereafter, as indicated in Fig. 7D, the stack pushers will continue to move forwardly with the forward motion of the magazine conveyor as the cartons are sequentially fed through the discharge point of the magazine conveyor and into a downstream packaging machine magazine.
  • FIG. 8-10 An additional embodiment of the carton decasing system 200 according to the principles of the present invention is generally illustrated in Figs. 8-10.
  • the embodiment of the decasing system 200 shown in Figs. 8-10 is designed to enable access to the packaging machine PM, as needed, such as for loading additional materials, clearing jams, etc.
  • the decasing system can be adapted for use with "twin stack" type packaging systems and equipment wherein a first stack or layer of products, such as bottles or cans or other similar product, are placed upon a carton, after which a layer pad is placed over the first or lower stack of products placed on the carton, after which a second layer or stack of products is placed on top of the layer pad and the carton folded thereabout to form a "twin stack” product package.
  • the layer pads typically are inserted between the stacks of products at an intermediate point along the path of travel of the products through the twin stack packaging machine and thus access must be provided to the layer pad magazine for loading of additional layer pads therein.
  • the decasing system 200 is adapted to provide the automated decasing features of the present invention for use with such a twin stack or other style packaging machines while also enabling access to the layer pad magazine and/or other areas of the packaging machine by an operator, without requiring reconfiguration of the packaging machine and/or without substantial disruption in the decasing of the cartons for feeding into the carton magazine of the packaging machine.
  • the cases 12 with the cartons 11 stacked therein will be fed along the case infeed conveyor 24 to the inverting assembly 30 where the cases are engaged by the inverter head 30A thereof.
  • the case infeed conveyor and inverter head 30A generally will have substantially the same construction as discussed above with reference to Figs. 1-3C.
  • the inverter head will generally be mounted on adjustable frame members or supports 33 and generally will include side guides or clamps 34 that are adjustable laterally to receive cases of different sizes and/or configurations, as well as top and bottom case support guides 44 and 46 (Figs. 9A-9B) that likewise are vertically adjustable along the frame members of the inverter head to accommodate different size and/or configuration cases.
  • the inverter head further will be mounted on a carriage 201 , which conveys the inverter head 30A about an extended, orbital path over and above a layer pad magazine access area or station 202 provided along the path of movement of the cases.
  • This layer pad magazine access area 202 enables the operator to access the twin stack packaging machine PM (Figs. 8 and 10) for loading of a stack or series layer pads into the layer pad magazine 203 of the twin stack packaging machine.
  • Such access further is provided without disruption of the operation of the carton decasing system for removing stacks of cartons form their cases and feeding such stacks of cartons into a carton magazine 204 of the packaging machine.
  • the carriage 201 on which the inverter head 30 A of the carton decasing system 200 is supported, is mounted on a radially extending track or rail assembly 206.
  • this rail assembly 206 extends along an orbital path, upwardly and over the layer pad magazine access area 202, from the downstream end of the case infeed conveyor to the upstream magazine conveyor 31.
  • the rail assembly 206 generally will include one or more rails 207, which could include V-rails, box rails, or other configuration rails, and which can further include a series of rollers mounted therealong for supporting the carriage as it is moved along the rails.
  • the rails 207 are supported over the layer pad magazine access area by an orbital frame 208.
  • the carriage 201 of the inverter head 30A generally will engage and ride along the rails of the rail assembly 206 and will be moved about its orbital path, indicated by arrows 209 in Fig. 9B, for transporting a case with the stacked cartons therein over the operator and layer pad magazine access area 202 for depositing the case in an inverted position onto the magazine conveyor 31.
  • a drive system 210 will control the orbital movement of the carriage 201 along the rail assembly 206.
  • the drive system 210 generally will include a reversible, variable speed motor, such as shown at 211, and a drive mechanism or means, illustrated by phantom lines 212 in Fig. 8, that transports the carriage 201 along its orbital path as shown in Figs. 9A-9C.
  • the drive motor 21 1 generally will be a variable speed, reversible motor sized for a duty cycle and load to accommodate varying size and weight cases containing varying size cartons stacked therein.
  • the motors also can include a reducer so as to increase the torque of the motor to accommodate varying size/weight loads of cartons and can be operated at cycle rates of approximately 30-45 seconds per operational cycle, although greater or lesser cycle rates also can be used.
  • the drive mechanism 212 further can include one or more chains, cables, belts, or a combination of chains, belts and/or cables (shown in phantom lines 214 in Fig. 8) that are received within and moves along the rails 207 of the rail assembly 206 in a reversible, back and forth motion under operation of the drive motor 21 1.
  • the drive mechanism could include an orbital rack and pinion, with a pinion gear being driven by a motor mounted to the inverter head.
  • the drive motor 21 1 generally will be actuated to commence inverting of the case and cartons.
  • the motor will pull the drive chain or other drive mechanism along the rails of the rail assembly 206, causing the carriage 201 to transport the inverter head 30A about its orbital path as shown by arrows 209, upwardly and over the layer pad magazine access area 202.
  • the inverter head thus will be moved about its expanded, orbital path for inversion of the case, and will place the inverted case on the magazine conveyor 31 as discussed with respect to the prior embodiment of Figs. 1-6. Thereafter, a carton decasing operation can be commenced, as discussed above with respect to the prior embodiment and as illustrated in Figs. 6-7D, for removal of the cases from the stacks of cartons, after which the cases can be removed from the carton decasing system and packaging machine along their overhead conveyor, while the stacks of cartons are fed into the carton magazine 204 for the packaging machine PM.
  • the drive motor 211 of the drive system 210 also can be reversed, pulling the drive chain(s) 214 of the drive mechanism 212 (Fig. 8) rearwardly so as to transport the inverter head in a reverse direction along its orbital path, back to its initial, home position at the downstream end of the case infeed conveyor for receiving a next case with a stack of cartons therein.
  • the embodiment of the carton decasing system 200 illustrated in Figs. 8-10 thus enables the use of the carton decasing system according to the principles of the present invention with additional types of packaging machines, such as twin-stack type packaging machines, by providing an operator with walk-in access to the layer pad magazine of the packaging machine for loading of additional layer pads and/or for providing access to the packaging machine as needed for clearing of jams, etc.
  • the access area 202 defined within the carton decasing system 200 generally will include a series of protective panels or barriers, generally indicated at 215 forming a protective housing or cage 216 beneath the rail assembly 206 along which the carriage 201 is conveyed during a case inverting operation.
  • Such barriers 215 can include Plexiglas or safety glass panels supported by frame members 217, which panels or barriers 215 can further be removable or otherwise pivotally mounted to the frame member so as to enable access to the rail assembly 206 as needed for maintenance or repair/replacement or other adjustments thereof. Additionally, other panels or barriers also can be used, including the formation of a wire cage or similar protective housing, so that the operator can be provided with substantially safe/protected access to the layer pad magazine or other areas of the packaging machine during operation of the inverting assembly 30 of the carton decasing system 200.
  • the automatic carton decasing system of the present invention thus is designed to maximize the use of space by utilizing the smallest footprint possible, while maintaining front guard line and maintenance side clearance as needed for the infeed conveyors.
  • the case infeed conveyor is provided with an in-line layout enabling extensions of the case infeed conveyor as needed.
  • the automatic carton decasing system further is provided with open access for each of the operative assemblies for ease of changeover and maintenance, and is generally adapted to be a self- contained unit to enable magazine loading and unloading with or without decasing functionality so that the system can be utilized in various configurations and as a retrofit or upgrade to existing packaging systems.
  • the system further can be primed by loading a limited number of cartons initially within the feeder to create an initial stack against which later decased carton stacks will be placed, while the empty cases are dischargeable along a high level conveyor to help reduce the system footprint, and which further can be reconfigured to provide case discharge anywhere in an approximately 180° radius for discharging cases into a bin or baler or directing them to some other type of containment unit for collection and disposal or recycling. 7]
  • the foregoing description generally illustrates and describes various embodiments of the present invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Specific Conveyance Elements (AREA)
  • Attitude Control For Articles On Conveyors (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Container Filling Or Packaging Operations (AREA)

Abstract

La présente invention concerne un système de déballage de cartons permettant d'enlever des piles de cartons ou des flancs de cartons depuis des caisses ou des contenants comprenant un transporteur d'alimentation en caisses sur lequel les caisses dans lesquelles les cartons ou les flancs de cartons sont empilés sont déplacées vers un ensemble retournement. L'ensemble retournement réoriente les caisses et les place, les cartons étant empilés dedans, sur un ensemble de déballage qui enlève les caisses des piles de cartons. Les piles de cartons sont ensuite transportées le long d'un transporteur de chargeur, les piles de cartons étant soutenues par un ensemble pousseur de piles au fur et à mesure que les cartons sont déplacés vers un point de décharge au niveau de l'extrémité distale du transporteur de chargeur.
EP13800346.2A 2012-06-07 2013-05-13 Système de déballage de cartons Active EP2858907B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201261656715P 2012-06-07 2012-06-07
PCT/US2013/040730 WO2013184295A1 (fr) 2012-06-07 2013-05-13 Système de déballage de cartons

Publications (3)

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EP2858907A1 true EP2858907A1 (fr) 2015-04-15
EP2858907A4 EP2858907A4 (fr) 2016-03-23
EP2858907B1 EP2858907B1 (fr) 2019-05-08

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EP13800346.2A Active EP2858907B1 (fr) 2012-06-07 2013-05-13 Système de déballage de cartons

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EP (1) EP2858907B1 (fr)
CN (1) CN104349980B (fr)
AU (1) AU2013272120B2 (fr)
BR (1) BR112014027930B1 (fr)
CA (1) CA2869017C (fr)
ES (1) ES2729755T3 (fr)
MX (1) MX356335B (fr)
NZ (1) NZ700731A (fr)
WO (1) WO2013184295A1 (fr)

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WO2018082940A1 (fr) * 2016-11-04 2018-05-11 Tetra Laval Holdings & Finance S.A. Dispositif d'alignement, système et procédé destinés à aligner une pile de découpes de carton
CN110203496B (zh) * 2019-06-06 2020-10-16 楚天科技股份有限公司 一种取托方法、取托装置及拆包机
CN110902065A (zh) * 2019-12-31 2020-03-24 三只松鼠(无为)有限责任公司 应用于工业互联网的包装箱拆箱线输送机构
KR102134337B1 (ko) * 2020-02-19 2020-07-15 씨제이제일제당(주) 포장 박스로부터 물품을 인출하는 인출 시스템
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CN113879621B (zh) * 2021-10-31 2024-05-14 山东森焱包装印刷有限公司 用于纸箱展开及下端面封箱的自动折盖封箱装置
CN115123622B (zh) * 2022-06-16 2024-05-28 杭州中亚机械股份有限公司 一种装箱输送部件
CN115285412A (zh) * 2022-08-08 2022-11-04 江苏华彩食品工程技术有限公司 一种翻箱装置及其打包方法
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Also Published As

Publication number Publication date
ES2729755T3 (es) 2019-11-06
CN104349980B (zh) 2016-07-13
CA2869017C (fr) 2018-02-13
AU2013272120B2 (en) 2016-07-07
EP2858907A4 (fr) 2016-03-23
MX356335B (es) 2018-05-23
WO2013184295A1 (fr) 2013-12-12
NZ700731A (en) 2016-07-29
BR112014027930A2 (pt) 2017-06-27
CN104349980A (zh) 2015-02-11
CA2869017A1 (fr) 2013-12-12
EP2858907B1 (fr) 2019-05-08
AU2013272120A1 (en) 2014-10-16
BR112014027930B1 (pt) 2020-11-10
MX2014013482A (es) 2015-02-12

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